2001年1月
Airborne gaseous N-13 species and noxious gases produced at the 12 GeV proton synchrotron
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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- 巻
- 247
- 号
- 1
- 開始ページ
- 25
- 終了ページ
- 31
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1023/A:1006790309473
- 出版者・発行元
- SPRINGER
The irradiation of atmospheric air with high-energy protons has been performed at the 12 GeV proton synchrotron. The specific activity of N-13, one of the principal airborne radioactivities, was measured as a function of the irradiation time at a dose rate of about 6.10(16) eV/g/s, and compared with the calculated values. The predominant chemical species of N-13 produced were found to be N-13(2) and (NO2)-N-13. Their proportions were approximately 55% for N-13(2), and 45% for (NO2)-N-13, being almost independent of the irradiation time. Smaller quantities of (NO)-N-13 and (HNO2)-N-13 were also observed. Measurements of radiolytic products showed that ozone is a main product and that NO2 predominates among the products of nitrogen compounds, including HNO2 and HNO3. The G-value for ozone formation in air was estimated from the experimental data as 6.4 molecules/100 eV.
- リンク情報
- ID情報
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- DOI : 10.1023/A:1006790309473
- ISSN : 0236-5731
- Web of Science ID : WOS:000167567300004